Solid of revolution between two functions (leading up to the washer method) | Khan Academy

Finding the volume of a solid of revolution that is defined between two functions. Created by Sal Khan.

AP Calculus AB on Khan Academy: Bill Scott uses Khan Academy to teach AP Calculus at Phillips Academy in Andover, Massachusetts, and heÕs part of the teaching team that helped develop Khan AcademyÕs AP lessons. Phillips Academy was one of the first schools to teach AP nearly 60 years ago.

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[ericm]

i really appreciate that you explain how to find the equation, not just what the equation is. i'm awful at memorizing equations but i can usually reason things out pretty well. also, your videos (in conjunction with some other youtube-teachers) are really helping me prepare for my AP test (this Wednesday) so thank you

[RonPaul]

I’m glad he went over the arithmetic in 8:50. I would have forgotten how to do it otherwise.

[melvincordon]

Your videos help tremendously. Thank you so much for your time !

[AhmedMohammed-kzej]

Thank you very much . Your channel is really the best one for learning Calculus.

[Tooflyme]

Thanks! It is much more helpful than my college professor

[jadjabi]

I wish my teacher would explain like that

[mdsalman]

why are we using the radius sqrt (x) for the outer radius?

[Alduric]

what if there is also like a x=0 or x=1

[TheChelseabug]

It's gonna look something like...

[michaeldeguire]

i never comment but holy crap you're great

[alexandermbot]

How do you know if you are solving for y or for x, and which one is the ine subtracting?
Is someone can explain it to me I'll appreciate it I have a test tomorrow😁

[akhilr]

Iam the first viewer..oh god iam blessed ...BTW u rock Sal!!!!

[The_Lost_Shepherd]

Learn calc and big words! Two birds with one stone lol

[cristixyz]

I only clicked here because it looked like a tornado. I'm horrible. :(

[itsroro]

Can you stop drawing picture and actually write out what your talking about ...

[hazlee]

That's a pretty hefty diet you got there.